Who starred in Juno?

The main cast of Juno includes:

* Ellen Page as Juno MacGuff

* Michael Cera as Paulie Bleeker

* Jennifer Garner as Bren MacGuff

* Jason Bateman as Mark Loring

* J.K. Simmons as Mac MacGuff

* Allison Janney as MacGuff's friend, Mrs. Loring

* Olivia Thirlby as Leah

* Rainn Wilson as Mark Loring's friend, Mac

* Gil Bellows as Bren MacGuff's boyfriend, Vanessa's father